Assigstob to william h



tion, part sectional ence being had to the 'secured to the chassis f'vvv Millie infill NEVI YORK.

SHOCK-ABSORBER FOB. VEHICLES.

Leona/11.

Specification of Letters Patent.

latented llene 1U?, 11E-19.

Application led March e, 1915. Serial No. 226,233.

To (allv who/n t may concern:

Be it known that I, JOHN F. lCoNivon, a citizen ot' the United States,residing at Chicago, in the county of Cool; and State of Illinois, haveinvented a certain new and useful linprovenient in Shoclerbsorbers forVehicleso'f .which the following is a full, clear, concise, and exactdescription, reeraccompanying drawa ings, forming a part oi' thisspecification.

This invention relates to improvements 1n shock absorbers for vehicles.

rlChe object of the invention is to provide a relatively inexpensive andsimple shock absorber for automobiles and the like and wherein thecapacity is automatically varied in accordance with the relativemovements between the parts of the vehicle to which the shock absorberis attached.

In the drawing :forming a part of this specification, Figure l is a partside elevaview of a portion of an automobile chassis and axle showing myiinprovements in connection therewith. Fig. 2 is a horizontal, sectionalview, talen substantially on the line 2*2 oi Fig. 1. And Fig. 3 is adetail, sectional view, taken on the line 3-3 of Fig. 1.

In said drawing, 10 denotes a portion of' an automobile chassis, 11 anaxle,12 a semielliptio spring, 13 a quarter-elliptic spring, 14 acompensating link connecting;` the semielliptie. and qua.rter-ellipticsprings, and 15 a depending bracket secured to the chassis and to whichone end of the spring 12 is attached.

The improved shock absorber is adapted to be interposed between thechassis 10 and the axle 11 to cushion the excessive shocks. As shown,said shock absorber includes a plunger A, a. telescoping sleeve B,clamping blocks C-C pressure-appl ving links D-D, bell-crank E, andspring 11.

The plunger A, which is preferably made hollow to'savc inetal and reduceweight, is preferably of substantially cylindrical 'forni and fornis anintegral part of a bracket 1G '10 by any suitable means, such as therivets 17. ll`hc telescoping sleeve B incliules a base ilange 18 bywhich it is secured to the spring 12 and axle 11 through theintermediary of the usual sl'ningF cli s 19-19. Extending upwardly fromthe ase plate 18, is the sleeve proper 20V-2021, the parte v20 and 2Oilbeing substantially semi-cylindrical and separated by diaxnetricallydisposed slots 21-21. ln actual practice, the sleeve Ztl- 20a may beformed integrally with the base plate 18 and originally made as a.continuous cylinder and a saw-cut made so as to forni the two halves inorder to permit the necessary iexibility for the gripping action, ashereinafter described.

The clamping blocks U-C are curved on their inner Yfaces, as indicatedat :2Q-221, to lit the exterior of the split sleeve 2li-0, The blocks0.-- may be made in the ilforin of castings. The clai'nping block C isprovided 'vvith a. pair ot' perforated ears 23-23 between which thebell-crank E is pivoted on the pin 2i. rlhe vertically extending arm 25of the bellferanlr has pivotally con neet-ed thereto the. links Dfl),the opposite ends of said links D-D, which st addle the 1 clampingblocks C-C being pivot-ally connected,.as indicated at 2G, to theclamping bloelC. The horizontal arm 2T olI the bellcrank E is providedwith a `suitable flanged enlargement 28 which forms a lower seat for thevtwo-coil spring F, and'in order to hold the spring ll" in proper'posit-ion, an upwardly extending stud 29 is. used that extends withinthe spring F. Similarly, the bracket 16 is provided with a. enulargementv 30 to iorni the upper bearing for the spring lt and acentering stud 31.

ln actual practice, the spring .il will he under an initial compressionin normal position of the vehicle parte. 11s the chassis and axleapyjiroaeh each other, it is evident that the plunger will be nrtherteleswped within the split sleeve 2O-J2()a and at the saine time, thespring F will be put initier further compression, thereby automaticallyincreasing the clamping pressure oi the clamping blocks (-{l on thesplit sleeve :20- 20a and' of the latter in turn on the plunger il.rl`he nearer the chassis and aille approach each other, the greater thefriction that will be created, as Will be ap'- parent. and the frictionwill be graduated in accordance with the varying positions of thechassis and axle.

l claim: 4

1. ln a shock absorber 'for vehicles and the like and adapted to beinterposed between the axle and chassis, the combination with slid-ablyengageable elements arranged for relative movements in accordance withthe attae reletirn morenients el tbe axle and eliassis; et e npingineens associated with said elenid clamping means including a link and tlotion bloelrs, said link being pivotaliy col to one of sairl frictionblocks; and ineens for Varying the pressure of sairl elaxnpiitgr meanson said elements and actuated upon relative movement between the chassisand nnle from normal position.

iin a -sboclr absorber tor automobiles and tbe like and adapted to beinterposed between tlie erle and chassis, 'the combination Witln twoelements relatively sliclaole in lirictienal engagement, of separateclamping bloelts located exteriorly ot said elements,

and opringnetuatefl means for varying the pressure saifl clamping blocto, saidv spring-actuated means being arranged to Y tbeclainpingpressure in accordance ,b tbe relative movements of the axle and.eliassis.

o. lin sboclt absorber vfor vehicles and the n like ano" atleptetl to beinterposed between tri-,Ile andA eiiassis, tbe combination with twoteleseopefl elements, one of which is movable in. unison with tbe' axleand the otner'in unison with the chassis, of external elarnping; meansassociated with said ele-.

niente, and means for varying tbe pressure of saicl clamping means onsaid elements einen relative movement between the eliassis and arie.,

fl. ln e slioek absorber for vehicles and the litre, tbe combinationwith two telescoped elements in slidable frictional engagenientQ on@larnping blocks located exteriorly of said l eopefl elenfients, analspring actuated ineens tor varying the pressure, ot said sepaneonatirate damping blocks, tbe pressure being vie riable in accordance withthe relative movement between the two members adapted to be cushioned bytliesbock absorber. y,

In a slioclr bsorber of the character described, tlie combination `witha plunger adapted t0 be secured to one member of a vehicle, of a splitsleeve within which said plunger is telescoped, said split sleeve beingadapted to be secured to another member et the vehicle, clamping blocksen the outer sides of said split sleeve, and spring-actuated means forvarying the pressure of Saicl clamping blocks dependent upon relativemovement between the plunger and split sleeve.

G. In a shock absorber ofthe character described, the combination with aplunger adapted to be secured to one member of a vehicle, of a splitsleeve Within which said plunger is telescoped, said split sleeve beingadapted to be secured to another member of the `vehicle, clamping blockson the outer sides of said split sleeve, and spring-actuated means forvarying the pressure of said clamping blocks dependent upon relativemovement between the plunger and split e5 sleeve, said means including aspring, a bellcrank, against one arm of which said spring reacts, and,link connections between the other arm of said bell-crank and one ofsaid clamping blocks, said bell-crank being pivoted to the other of saidclamping blocks.

ln witness that I claim the foregoing I have hereunto subscribed my namethis 14th day of Feb., 1918.

Jona r. ooonnoe.

